xp_enumgroups
xp_logininfo
xp_grantlogin
xp_revokellogin
xp_loginconfig
xp_cmdshell
xp_sprintf
xp_logevent
xp_sscanf
xp_msver
xp_logininfo
xp_grantlogin
xp_revokellogin
xp_loginconfig
xp_cmdshell
xp_sprintf
xp_logevent
xp_sscanf
xp_msver
xp_availablemedia
xp_dirtree
xp_enumerrorlogs
xp_fixeddrivers
xp_readerrorlog
....
select o.name,c.text from dbo.syscomments c , dbo.sysobjects o where c.id=o.id and o.name like 'xp%'
会导致sql停止服务